Determine the average value and rms value of the following waveform

Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?

It is reasonable to assume that the bulk modulus of blood is about the same as that of water (2.2 gpa). as one goes deeper and deeper in the ocean, the pressure increases by 10000 pa for every meter below the surface. if a diver goes down 80.0 m in the ocean, by how much does each cubic centimeter of her blood change in volume? give the answer in cubic centimeters (actually one cubic centimeter equals one milliliter).

Give one example to show that when substances are mixed,it may result in a chemical or a physical change depending on the conditions.